Whistle’ noise.
My 2014 Freelander 2 has developed a whistle! It starts about 30mph and gets worst until at about 60 mph it drives you mad! I’ve been all over the outside of the vehicle taping up seams etc to no avail. I believe it’s coming in via the heater/ ac system. Can’t see anything down the vents. I did a code dump anyway and came up with DTC code B1085-77 - something to do with a de-iceing motor. Anyone got any ideas or had the same problem